7(2x+3)-5x=66

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Solution for 7(2x+3)-5x=66 equation:


Simplifying
7(2x + 3) + -5x = 66

Reorder the terms:
7(3 + 2x) + -5x = 66
(3 * 7 + 2x * 7) + -5x = 66
(21 + 14x) + -5x = 66

Combine like terms: 14x + -5x = 9x
21 + 9x = 66

Solving
21 + 9x = 66

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-21' to each side of the equation.
21 + -21 + 9x = 66 + -21

Combine like terms: 21 + -21 = 0
0 + 9x = 66 + -21
9x = 66 + -21

Combine like terms: 66 + -21 = 45
9x = 45

Divide each side by '9'.
x = 5

Simplifying
x = 5

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